Double-acting pump.



I. M. JONES.

DOUBLE ACTING PUMP. APPLICATION FILED JUNE 30.19l5. 1,208,977. Patentedmec. 19,1916.

l 44414 lun IIII 4 l JOHN MASON JONES, OF PEORIA, ILLINOIS.

DOUBLE-ACTING PUMP.

speeieation ef Letters Patent.

Applicativi; mea June 3o, 1915. serial No. 37,185,

To all whom t may concern: Be it known that I, JOHN MASON JONES, acitizen of the United States, and a resident of Peoria, in the county ofPeoria and State of Illinois, have invented certain new and usefulImprovements in Double Acting Pumps, of which the following is a full,clear, and exact description, reference being had to the accompanyingdrawing, forming part of this specification.

My inventionl relates .tol double acting pumps adapted more particularlyfor service in drilled wells though it is capable of use 'in any placewhere it is desired to pump water with the least possible expense ofpower and the minimum Vof repairs.

The object of my invention is to'provide a pump which is economical inservice, inexpensive to build and maintain, reliable in action andwhich, should occasion require, can be easily and quickly removed fromthe well for inspection or repairs and then easily restored toworkingposition.

The novelty of my invention will be here-v inafter more fully set forthand specically pointed out in the claims.

In the accompanying drawing, Figure 1 is a vertical sectional elevationof a pump embodying my invention and showing all of the worln'ngparts'thereof. Fig. 2 is a plan section of the upper4 discharge valvecage and associatedparts, taken on the dotted li-ne A-.A of Fig. 1. Fig.3.is a sectional plan view taken onl the dotted line B-B of Fig. 1. Fig.4 is a plan view of the seat of the lower suction valve and also thefoot valve to be referred to later. Fig. 5, is a vertical view partly insection, showing the lower end of the pump cylinder, the suction pipewith its foot valve and the well casing.

The same numerals of reference are used to indicate identical parts inall the iigures.

Referring more particularly to Figs'. 1 and 5, 1 represents the usual orany sultable well casing which is driven into the ground and forms thewell proper. Inserted` within this casing and suitably supported fromthe top of the well, is the delivery plpe 2, to the lower end of whichis screwed the seat ring 3, and to the latter is suitably screwed thesuction pipe 4 which extends downward and well under the level ofthewater in the well. rI he lower end of the suction pipe 4 is providedwith a suitable foot valve which consists of the seat 5, disk 6, spring7 and stud 8, Fig. 5. As shown in Fig. 1, .theseat ring 3 is providedwith'an inner tapered seat 9, within which vthe ported plug or casting10 is accurately fitted, and to the lower end of this plug 10 is screwedthe pump cylinder 11, which is preferably composed of brass tubing andis of a length suflicient for Vthe reception of the interior parts ofthe pump and also the stroke of such parts. The lower end of the, pumpcylinderv is closed by the lower suction valve 12 ,which is in allrespects, except as tov size, similar to the foot valve beforedescribed. 'Aseries ofupper suction ports 13 extend from the spacebetween the pump cylinder 11 and the suction pipe 4, these ports beinglocated in the lower part of the plug 10 as shown clearly in Fig. 1. Theupper suction valve14, held in place these latter parts being shown inPatented Dec. 19, 1916.

against its seat covering the ports 13 by spring 15, .which in turn isheld in position by ring 16 screwed into the lower end of plug 10,serves to closeA the ports 13, this valve being in the form of airingwith a comparatively large center opening as shown.

A second series of ports 17 extend upward through the plug 10 as shownin Fig. 1, and theseports are normally closedzby the lower dischargevalve 18 whichvis held in place against its seat by thespring 19 whichbears against ,the lower part of the gland 20.

The gland 2O hasa lower flange 21 which aii'ords a stop to limit theupward movement of the valve 18 and the vupper end of this gland ispro-vided with the packing 22 which forms a water-tight joint'againstthe outside of the hollow piston rod 23. To the lower end of the pistonrod 23 is suitably attached the piston 24, which is provided with thecup leathers 24 and followers 24, two of the cup leathers being turneddownward and the other two upward in such manner that the-pistonV willsuck and deliver w-ater when operated in either direction.

The pistori v24- is attached to the lower end of the pistonrod 23 bymeans of theJ connector 25 which serves the purpose of connectionbetween these parts and also to compress the followers and cup leathersto hold the same in proper position.

The piston. has a central water passage as upper discharge valve 26, thelower ring or seat 27 of which, in addition to the connection to thepiston rod, isscrewed to vthe cage 2 8 which in turn has its upperportion screwed over the lower end of the operating rod 29 in suchmanner that when this rod vis reciprocated, it, through the connectionsand parts described, reciprocates the piston-"to pump water from thewell.

The operation of the various. parts of the pump is as follows, the partsbeing shown at or near the end of the up Vstrokeofthe piston, and all of'the.ports, cavities and l*passages are assumed to be full of water. OntheA down stroke of the piston rthe water within the lower part of thecylinder is forced up throughthe hollow piston rod, through the upperdischarge valve and into the delivery pipe, while at thesame time apartial vacuum is produced above the piston which.v draws water into the'upper part of the cylinder throughrthe ports 13,v past-upper suctionvalveland intothe upper 2part of i the pump cylinder, this water beingdrawn fromA the space vbetween the cylinder and the suction pipe. 'Atthe completion of the down stroke of the `piston the upper suction andupper discharge 'valves both close and uponthe beginning `of the upstroke the water which has justf-been drawn. intothe upper part ofthecylinder is forced through the discharge ports 17 and past the lowerdischarge valve and linto the delivery pipe, while at'the same timewater is drawn. into the lower :part ofthe vcyl-vinder through thelowersuction valve, which up stroke when completed or nearly so willbring the parts to the positions shownvand thus complete a cycle ofoperation.

It' is to be observed that there are no ports, .openings or passages orother. means of communication between` the suction and delivery pipesand that there is, consequently, no possibility of leakage between thesuction and delivery pipes, and that in consequence of this constructionit is possible to maintain the water properlywithin the pump andV thatit-will not be necessary to prime a pumpof this construction even whenthe cylinder isplaceda considerable distance above the level ofthe waterinthe well.

ylt is also to -be noted that I employ asingle foot valve of the flatseated type and that this valve is always submerged, thus providingagainst the lossr of the water in Y the suction pipe.

' all of the discharge valves.

Y It is to be further observed that l can enti-rely remove from the wellall of the pump mechanism without in .any way interfering `with thewater tightness of the stand pipes above the foot valve and that theremoval of these parts includes the cylinder and' all of its parts,including all of the suction and To make ysuch a removal, the operatingrod is pulled upward until the piston comes against the lower end of theplug 10 whereupon a further movement of the operating rod lifts the saidplug and with it, all of its associated and connected parts as will bereadily understood.

Again, it is to be observed that all of the water ports and passages areof liberal size and that there are notortuous passages for the water,.and that .the water in passing through this pump, cando sowith theleast possible amount of friction,f.and still further that theconstruction and arrangement of: the parts :islsuch that Ik can use acylinder .inwa given v size of well, afar in excess of the sizecylinderwhichvit4 has hitherto been possible to use, consequently enabling mypump to deliver .alarger amount of water than pumps `which have beenbuilt herebefore.

If' desired,.the lower; edge ofthe seat of the lower suction valve 12may-.be yprovided with guides 30 eutendingrradially therefrom andbearing against .the 4inside ofthe suction pipe soas to maintain thecylinder in a central position :in the suctiony pipe.

Having thus fully described my invention,I claim;

1.'In a double.: acting pump, the combinationofa seat` ringconnecting .asuction and delivery pipe, awsuctionpipe'extending belowsaid seat ring,z a. delivery pipe supportingsaid seat ring,"aported plug seated withinsaid ring and removabletherefrom,

suction and discharge valves seated within andronsaid plug,acylinderattached to the lower .part'of said. plug and located withinsaid suction pipe, centering device on the lower portion yofsaidcylinder forv maintaining the latter iniproperposition within saidsuction pipe,.a piston within said cylinder, meanslfor operating saidpiston, a suction valve within the lower end of said cylinder, adischarge valve carried `by said piston operatingv means, and a footvalve within the lower end of saidsuction pipe.

.2. In a `.deep `well pump; thecombination of a delivery pipe, a.suction pipe connected thereto and extending below the surface of ythewater. in aiwell, a lfoot-valve-near the lower end off said suctionpipe, a pump. cylinder. and associated vparts located vabove said'foot-valve, `and means for removing said .pump l.cylinder andVassociated parts from theiwell` without disturbing said footvalve orlowering. thelevel of the Awater in said" suction pipe beyond an amountequal toi the .displacement of the parts removed.

In a deep well'pump the combination ofa stand pipe extending below thesurface ofthe water in awell, a divisional connection in said stand pipevwhichv convertsl the lower part thereof into .a suction pipe, afoot-valve in the. lower part of said suction pipe, a pump cylinder andassociated parts normally mounted by and at said divisional connection,and means for removing said cylinder `and associated parts from the wellwithout materially changing the level of` the water in said stand pipe.

4. In a deep well pump the combination of a stand pipe extending belowthe surface of the water in a well, a pump-cylindersupporting divisionalconnection in said stand pipe which converts the lower part thereof intoa suction pipe, a foot-valve in the lower part of said suction pipe, apump cylinder with a head portion seating in and supported by saidpump-cylinder-supporting divisional connection, suction and dischargevalves for said pump cylinder, a piston within said cylinder, means foroperating said piston, and means for removing said cylinder and pistonand said suction and discharge valves from the well without releasingthe water in said stand pipe.

JOHN MASON JONES.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

